As Lennier (Bill Mumy) is meditating while building the motorcycle, he chants "Zabagabee" which is the name of the greatest hits album for his band, the Jenerators. He got in trouble with J. Michael Straczynski over this largely because Straczynski felt it was inappropriate for anyone to plug outside projects, and he had a strict policy against improvising on-set due to the potential effects it may have on the overall story of the series.
The scene of Garibaldi (Jerry Doyle) and Lennier (Bill Mumy) riding on the motorcycle had to be done with CGI because Doyle said he'd had bad experiences with motorcycles, and refused to drive one.
Jeffrey Combs (Harriman Gray) is one of several Star Trek actors to appear in Babylon 5. Combs portrayed several guest characters in Star Trek: Deep Space Nine (1993), Star Trek: Voyager (1995), Star Trek: Enterprise (2001), and Star Trek: Lower Decks (2020), as well as multiple Star Trek video games.
The character Harriman Gray returned in the Babylon 5 book, Voices.
Susan Ivanova was born in St. Petersburg in the Russian Consortium on Earth on August 10, 2230.